Linearly-polarized-light-induced optical anisotropy of a thin film of polymethacrylate with p-cyanoazobenzenes side chains is enhanced at elevated temperatures to display anomalously high stability toward heat and light.
HETERO HEAD-TO-HEAD DIMER BY TOPOCHEMICAL PHOTOREACTION OF METHYL α-CYANO-4-[2-(2-PYRIDYL)ETHENYL]CINNAMATE
作者:Satoshi Kato、Mitsunobu Nakatani、Hatsuhiko Harashina、Kazuhiko Saigo、Masaki Hasegawa、Sadao Sato
DOI:10.1246/cl.1986.847
日期:1986.6.5
Methyl α-cyano-4-[2-(2-pyridyl)ethenyl]cinnamate crytstal shows a high photoreactivity to form the dimer of single structure quantitatively. This result is a unique example in such point that the topochemical photoreaction of β-form diolefin crystals gives neither of the polymer nor the cyclic dimer, but the photostable diolefinic dimer.